CVE-2021-40616
Incorrect Authorization in thinkcmf
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
- Record
CVE-2021-40616- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-425
- Updated
- 2026-11-02
CVE List No score
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
- Record
CVE-2021-40616- Updated
- 2026-11-02
EUVDEUVD-2022-6158 No score
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
- Record
EUVD-2022-6158- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v25c-8349-v2q3
Incorrect Authorization in thinkcmf
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
- Record
GHSA-v25c-8349-v2q3- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
- Record
CVE-2021-40616- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-v25c-8349-v2q3
Incorrect Authorization in thinkcmf
thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.
- Record
GHSA-v25c-8349-v2q3- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
thinkcmf/thinkcmfPackagist |
through 5.1.7 | 6.0.0 |
thinkcmf/thinkcmfPackagist |
before 6.0.0, plus listed versions 5.0-Beta5.0-RC45.0.1706075.0.1709275.0.170927-rc Show 25 moreShow less5.0.180103-beta5.0.180115-RC5.0.1801235.0.1805015.0.1805085.0.1805255.0.1806265.0.1809015.0.1812125.0.1812315.0.181231-beta5.0.1901115.0.1903125.0.1904195.0RC15.0RC25.0RC35.1.0-betav5.1.0v5.1.1v5.1.2v5.1.3v5.1.4v5.1.5v5.1.7 |
6.0.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-40616 is a medium vulnerability (CVSS 6.5) in Thinkcmf, published June 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.77%, the 55th percentile. Fixed in thinkcmf/thinkcmf 6.0.0.